Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is All of them Oxygen Carbon dioxide Hydrogen All of them Oxygen Carbon dioxide Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as non-stick coating for cooking utensils? Polystyrene Teflon Styrofoam Perspex Polystyrene Teflon Styrofoam Perspex ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is used as fire extinguisher ? Carbon monoxide Carbon suboxide Carbon dioxide Sulphur dioxide Carbon monoxide Carbon suboxide Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Tritium Radium Phosphorus-31 Carbon-14 Tritium Radium Phosphorus-31 Carbon-14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Carbon monoxide Sulphur dioxide Carbon dioxide Smoke Carbon monoxide Sulphur dioxide Carbon dioxide Smoke ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver halides are used in photographic plates because they are Totally colourless Reduced by light Oxidised in air Soluble in hyposolution Totally colourless Reduced by light Oxidised in air Soluble in hyposolution ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS